Molecular phylogeny and biogeography of caecilians from Southeast Asia (Amphibia, Gymnophiona, Ichthyophiidae), with special reference to high cryptic species diversity in Sundaland

Nishikawa, K. and Matsui, M. and Yong, H.S. and Ahmad, N. and Yambun, P. and Belabut, D.M. and Sudin, A. and Hamidy, A. and Orlov, N.L. and Ota, H. and Yoshikawa, N. and Tominaga, A. and Shimada, T. (2012) Molecular phylogeny and biogeography of caecilians from Southeast Asia (Amphibia, Gymnophiona, Ichthyophiidae), with special reference to high cryptic species diversity in Sundaland. Molecular Phylogenetics and Evolution, 63 (3). pp. 714-723. ISSN 1055-7903

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

We investigated the phylogenetic relationships and estimated the history of species diversification and character evolution in two ichthyophiid genera: Caudacaecilia and Ichthyophis. We estimated the phylogenetic relationships of 67 samples from 33 localities in Southeast Asia from 3840-bp sequences of the mitochondrial 12S rRNA, 16S rRNA, and cyt b genes using Bayesian inference, maximum likelihood, and maximum parsimony methods. The Southeast Asian samples formed a well-supported clade differentiated from a South Asian sample. The Southeast Asian clade was divided into two subclades, one containing samples from South China, Indochina, Malay Peninsula, and Java. The other consisted of samples from Borneo and the Philippines. Neither Caudacaecilia nor Ichthyophis was monophyletic, nor did samples with or without light stripes lateral to the body form clades. We found several distinct sympatric lineages and undescribed species, especially from Sundaland.

Item Type: Article
Uncontrolled Keywords: Caecilians; Mitochondrial DNA; Phylogeny; Biogeography; Southeast Asia; Sundaland
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Apr 2015 08:36
Last Modified: 16 Apr 2015 08:36
URI: http://eprints.um.edu.my/id/eprint/13279

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